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1X3 Polarization Maintaining Coupler

LightComm uses unique fusing technique and polarization maintaining fiber to build the 1x3 polarization maintaining fused coupler (1x3PMC).The coupling ratio could be selected according to customer’s request. It features low excess loss, small size and high polarization extinction ratio. PMC is widely used for optical sensors and optical gyro, optical amplifier.

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1X3 Polarization Maintaining Coupler.pdf


Specifications

No

Parameters

Specification

Unit

Min.

Typ

Max.

1

Coupling ratio

33/33/33


2

Fiber type

PM panda   fiber


3

Pigtail type

250um bare fiber


4

Package size

Ф3.0*45

mm

5

Operating   Wavelength

1310 or 1550

nm

6

Bandwidth

+/-15

nm

7

Power handling

500

mW

8

Storage Temperature Range

-40 ~ 85

°C

9

Operating   Temperature Range

-5 ~ 75

°C

10

IL @ central wavelength

P grade

---

5.5

6.0

dB

A grade


5.8

6.2

11

EL

P grade


0.5

0.8

dB

A grade


0.7

1.0

12

ER

P grade

18

20


dB

A grade

16

18


13

RL

50



dB

* The specifications are without connectors. For devices with connectors, 0.3dB higher for IL, and 2dB lower for ER

* Slow axis working, If both axis needed, IL should be 0.2dB higher.